On that note I heard an interesting take on the age of the universe/earth thing -
If one believes that Jesus could do miracles, then when He changed water to wine, how old was the wine at that instant? If wine experts then or now were to examine the wine, wouldn’t they all agree that it was more then 5 minutes old?
So if God wanted something to look like it was 6000 or 6 zillion years old, I believe He could do it.
Why? Your guess is as good as mine.
Check out Psalm 19. If the universe "pours forth knowledge" about God, and the universe is 6,000 years old but there are stars in our galaxy further away than 6,000 light years, it makes God a deceiver, a maker of false images. I reject that utterly. "God cannot lie" Hebrews 6:18.